GB1546784A - Differential pressure indicators - Google Patents

Differential pressure indicators

Info

Publication number
GB1546784A
GB1546784A GB19051/75A GB1905175A GB1546784A GB 1546784 A GB1546784 A GB 1546784A GB 19051/75 A GB19051/75 A GB 19051/75A GB 1905175 A GB1905175 A GB 1905175A GB 1546784 A GB1546784 A GB 1546784A
Authority
GB
United Kingdom
Prior art keywords
differential pressure
pressure indicators
indicators
differential
pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB19051/75A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fawcett Engineering Ltd
Original Assignee
Fawcett Engineering Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fawcett Engineering Ltd filed Critical Fawcett Engineering Ltd
Priority to GB19051/75A priority Critical patent/GB1546784A/en
Priority to CA251,507A priority patent/CA1037283A/en
Priority to US05/681,954 priority patent/US4014284A/en
Publication of GB1546784A publication Critical patent/GB1546784A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L7/00Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
    • G01L7/16Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of pistons
    • G01L7/163Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of pistons construction or mounting of pistons
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L13/00Devices or apparatus for measuring differences of two or more fluid pressure values
    • G01L13/02Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G01L19/08Means for indicating or recording, e.g. for remote indication
    • G01L19/12Alarms or signals
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S116/00Signals and indicators
    • Y10S116/42Oil filter

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Filtration Of Liquid (AREA)
GB19051/75A 1975-05-06 1975-05-06 Differential pressure indicators Expired GB1546784A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB19051/75A GB1546784A (en) 1975-05-06 1975-05-06 Differential pressure indicators
CA251,507A CA1037283A (en) 1975-05-06 1976-04-30 Differential pressure indicators
US05/681,954 US4014284A (en) 1975-05-06 1976-04-30 Differential pressure indicators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB19051/75A GB1546784A (en) 1975-05-06 1975-05-06 Differential pressure indicators

Publications (1)

Publication Number Publication Date
GB1546784A true GB1546784A (en) 1979-05-31

Family

ID=10122939

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19051/75A Expired GB1546784A (en) 1975-05-06 1975-05-06 Differential pressure indicators

Country Status (3)

Country Link
US (1) US4014284A (en)
CA (1) CA1037283A (en)
GB (1) GB1546784A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2465868A (en) * 2008-10-17 2010-06-09 Elfab Ltd Pressure surge sensor with piston magnet and rupture disc

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8305927D0 (en) * 1983-03-03 1983-04-07 Fluid Devices Ltd Differential pressure gauge
DE3700593A1 (en) * 1986-01-13 1987-07-16 Sharp Kk ROTATION DEVELOPER
US7886610B2 (en) * 1999-07-19 2011-02-15 Donaldson Company, Inc. Differential pressure gauge for filter
DE102010022119A1 (en) * 2010-05-20 2012-03-01 Mahle International Gmbh Differential pressure measuring device and pollution degree monitoring device and filter device
US9688544B2 (en) * 2011-05-20 2017-06-27 Hydro International Plc Treatment device
US10914412B2 (en) 2018-06-28 2021-02-09 Watts Regulator Co. Backflow prevention assembly having a variable lay-length and orientation
USD944366S1 (en) 2019-03-08 2022-02-22 Watts Industries Italia S.R.L. Static balancing valve
EP3705866B1 (en) 2019-03-08 2023-09-20 WATTS INDUSTRIES ITALIA S.r.l. Differential pressure sensor with magnetic dial
US11815424B2 (en) 2019-05-08 2023-11-14 Watts Regulator Co. Backflow prevention system test cock with a fluid sensor
US11795666B2 (en) 2019-05-08 2023-10-24 Watts Regulator Co. Wireless communication system within a mechanical room
EP3835494A1 (en) 2019-12-10 2021-06-16 Watts Regulator Co. System for monitoring backflow preventer condition
US11585076B2 (en) 2020-01-24 2023-02-21 Watts Regulator Co. Apparatus and method for valve cartridge extraction
US11773992B2 (en) 2020-08-17 2023-10-03 Watts Regulator Co. Backflow prevention assembly with a linkage
US11719352B2 (en) 2020-08-17 2023-08-08 Watts Regulator Co. Check cover assemblies for backflow prevention assemblies with integrated test cock protection shroud
US11739507B2 (en) 2020-12-09 2023-08-29 Watts Regulator Co. Test cock with integrated extraction tool
USD1021000S1 (en) 2021-08-17 2024-04-02 Watts Regulator Co. Valve assembly and body for same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3429291A (en) * 1965-02-16 1969-02-25 Leslie J Hoffman Differential-pressure responsive indicator
US3464556A (en) * 1968-03-11 1969-09-02 Dollinger Corp Filter with by-pass valve and indicator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2465868A (en) * 2008-10-17 2010-06-09 Elfab Ltd Pressure surge sensor with piston magnet and rupture disc
GB2465868B (en) * 2008-10-17 2015-12-16 Elfab Ltd Pressure surge sensor and assembly including such a sensor and a rupture disc

Also Published As

Publication number Publication date
US4014284A (en) 1977-03-29
CA1037283A (en) 1978-08-29

Similar Documents

Publication Publication Date Title
JPS51124969A (en) Pressure gauge
JPS5297752A (en) Rate indicator
JPS5282026A (en) Indicator
JPS5234637A (en) Visual sense indicator
JPS51132375A (en) Fluid servoomotor
JPS5448585A (en) Differential pressure gauge
GB1546784A (en) Differential pressure indicators
JPS51112368A (en) Pressure cycle indicator
BR7604814A (en) DIFFERENTIAL PRESSURE TRANSFORMER-METER
GB1548219A (en) Differential pressure responsive device
JPS524886A (en) Differential pressure indicator
JPS5217068A (en) Pressure gauge
JPS51114176A (en) Differential pressure measurement converter
AU1268076A (en) Pressure gauge type depthmeter
JPS5267293A (en) Composite segment character indicator
JPS5242169A (en) Pressure gauge
JPS5371881A (en) Pressure indicator
JPS5283252A (en) Soner indicator
JPS51129196A (en) Indicator
JPS5270624A (en) Interval indicator
GB1540765A (en) Pressure sensor
JPS5212872A (en) Differential pressure measurement converter
CH610833A5 (en) Differential
JPS52152776A (en) Differential pressure microogauge
JPS51127695A (en) Numeric indicator

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee